freeswitch/tests/unit/conf_playsay/freeswitch.xml

<?xml version="1.0"?>
<document type="freeswitch/xml">
  <X-PRE-PROCESS cmd="exec-set" data="test=echo 1234"/>
  <X-PRE-PROCESS cmd="set" data="default_password=$${test}"/>
  <section name="configuration" description="Various Configuration">
    <configuration name="modules.conf" description="Modules">
      <modules>
        <load module="mod_console"/>
        <load module="mod_loopback"/>
        <load module="mod_opus"/>
        <load module="mod_commands"/>
        <load module="mod_sndfile"/>
        <load module="mod_dptools"/>
        <load module="mod_tone_stream"/>
        <load module="mod_test"/>
      </modules>
    </configuration>

    <configuration name="console.conf" description="Console Logger">
      <mappings>
        <map name="all" value="console,debug,info,notice,warning,err,crit,alert"/>
      </mappings>
      <settings>
        <param name="colorize" value="true"/>
        <param name="loglevel" value="debug"/>
      </settings>
    </configuration>

    <configuration name="timezones.conf" description="Timezones">
      <timezones>
          <zone name="GMT" value="GMT0" />
      </timezones>
    </configuration>

    <X-PRE-PROCESS cmd="include" data="vpx.conf.xml"/>
  </section>

  <section name="dialplan" description="Regex/XML Dialplan">
    <context name="default">
      <extension name="sample">
        <condition>
          <action application="info"/>
        </condition>
      </extension>
    </context>
  </section>
</document>